Hi @luk_ab,

Sorry for the late response.
As per my information the issue is fixed by commit https://github.com/espressif/esp-idf/co ... 9338ccdf37

Hi @

> esp32-c3可以同时modbus-tcp-slave+modbus-rtu-master模式么？

Yes, this should be possible to start modbus-tcp-slave+modbus-rtu-master on the same station.

@manas_frinso , Your code missing some information on how the value is defined and how you read the data. There are several possibilities to address the block of registers. One is using the PARAM_TYPE_ASCII type in data dictionary, then read the data to the instance of the data block. Then you can i...

@manas_frinso, The latest esp-modbus supports extended types and also allows to configure the array of the values with the same type. For example it is possible to configure the array of float type in the data dictionary and the stack will pack the incoming data to this contiguous array. Then you ca...

Hi @luk_ab,

Which version of esp-idf you are using? The issue you describe looks as already resolved issue with the UART driver in RS485 mode.

Hi @stijnb1234, It is hard to recognize what is the issue on your side. It will be better if you print the sent request and add some additional code. If you provide your full request in HEX it will be more clear what goes wrong on your side. For example the read holding registers request and respons...

Hi @manas_frinso , I can just guess why it does not work on your side. I think it is just data dictionary configuration issue. Unfortunately, the information you provide is not enough to identify your issue. Please provide your Modbus r/w code and also data dictionary. Note: The CID order should be ...

Hello @Alexfox1103,

The TCP Slave functionality in the stack v2.0 is still not published. The functionality of TCP Slave is implemented but is not fully tested.

It will be introduced when possible.

Hi @ shubhs156,

This is not related to Modbus library but in the system library. This has been already fixed.

The answer is here: https://esp32.com/viewtopic.php?f=25&t=37255